English for the tech world

Speak English
as well as
you code.

I help programmers and data engineers communicate with confidence — in stand-ups, code reviews, and client calls. No textbooks. Just the English your job actually requires.

Book a free call → See how it works
session_01.py
# Before William's lessons
def explain_bug():
  return "uh... the thing... it no work"

# After 8 weeks
def explain_bug():
  issue = "race condition in async handler"
  impact = "intermittent 500s under load"
  fix = "mutex lock on shared state"
  return communicate(issue, impact, fix)

> running session_02.py...
6+Years teaching
200+Dev students
14+Countries
98%Satisfaction
William Chacón
★ 4.9 Average student rating
About me

I speak both languages — English and developer.

I'm William Chacón, a certified English teacher who specialises exclusively in tech professionals. Over 6 years I've worked with developers, data engineers, and product teams across 14 countries.

I know the exact moments where communication breaks down in tech — the stand-up where you go quiet, the PR review where you can't push back, the client demo where your confidence disappears. My lessons are built around fixing those specific moments.

Stand-up English Code review vocab Client presentations Technical writing Interview prep Async communication
Work with me →
What I offer

Three ways to work together

All programmes are built around real tech scenarios — no generic English course material.

"

Before working with William, I'd go silent in English meetings because I was afraid of making mistakes. After two months, I was leading our sprint reviews. The change was noticeable to my whole team.

Nathalie Lara Senior Data Engineer, Chile
Get in touch

Let's talk about your English.

Book a free 20-minute call. We'll talk about where you are, what's holding you back, and whether we're a good fit. No pressure, no sales pitch.

  • Free 20-min discovery call
  • First lesson within 48 hours
  • Flexible scheduling across time zones
  • Cancel anytime, no contracts
email kikewb@gmail.com
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